diff --git a/netbox_documentation/navigation.py b/netbox_documentation/navigation.py
index 2d32e61..c2eb13b 100644
--- a/netbox_documentation/navigation.py
+++ b/netbox_documentation/navigation.py
@@ -4,7 +4,7 @@ from netbox.choices import ButtonColorChoices
 menu = PluginMenu(
     label="Dokumentation",
     groups=(("Wiki", (
-        PluginMenuItem(link="plugins:netbox_documentation:document_list", link_text="Dokumentationen", buttons=(
+        PluginMenuItem(link="plugins:netbox_documentation:document_tree", link_text="Dokumentationen", buttons=(
             PluginMenuButton(link="plugins:netbox_documentation:document_add", title="Neu", icon_class="mdi mdi-plus-thick", color=ButtonColorChoices.GREEN),
             PluginMenuButton(link="plugins:netbox_documentation:document_import", title="Import", icon_class="mdi mdi-file-import", color=ButtonColorChoices.BLUE),
         )),
diff --git a/netbox_documentation/templates/netbox_documentation/document_tree.html b/netbox_documentation/templates/netbox_documentation/document_tree.html
new file mode 100644
index 0000000..fe27803
--- /dev/null
+++ b/netbox_documentation/templates/netbox_documentation/document_tree.html
@@ -0,0 +1,70 @@
+{% extends 'base/layout.html' %}
+
+{% block title %}Dokumentationen{% endblock %}
+
+{% block content %}
+<div class="row mb-3">
+  <div class="col d-flex justify-content-between align-items-center flex-wrap gap-2">
+    <input type="search" id="doc-tree-search" class="form-control" style="max-width: 20rem;" placeholder="Dokumente & Ordner durchsuchen…">
+    <div class="d-flex gap-2">
+      {% if perms.netbox_documentation.add_document %}
+      <a href="{% url 'plugins:netbox_documentation:document_add' %}" class="btn btn-success"><i class="mdi mdi-plus-thick"></i> Hinzufügen</a>
+      {% endif %}
+      <a href="{% url 'plugins:netbox_documentation:document_list' %}" class="btn btn-outline-secondary"><i class="mdi mdi-format-list-bulleted"></i> Listenansicht</a>
+    </div>
+  </div>
+</div>
+<div class="card">
+  <div class="card-body">
+    {% if tree or uncategorized %}
+    <ul class="netbox-doc-tree list-unstyled mb-0">
+      {% for node in tree %}
+        {% include 'netbox_documentation/inc/document_tree_node.html' with node=node %}
+      {% endfor %}
+      {% for document in uncategorized %}
+        {% include 'netbox_documentation/inc/document_tree_file.html' with document=document %}
+      {% endfor %}
+    </ul>
+    {% else %}
+    <p class="text-muted mb-0">Noch keine Dokumentationen vorhanden.</p>
+    {% endif %}
+  </div>
+</div>
+
+<style>
+  .netbox-doc-tree { margin: 0; }
+  .netbox-doc-tree .netbox-doc-tree { margin-left: 1.5rem; margin-top: .35rem; border-left: 1px dashed var(--tblr-border-color, #dee2e6); padding-left: 1rem; }
+  .netbox-doc-tree-item { margin-bottom: .35rem; }
+  .netbox-doc-tree-item > details > summary { list-style: none; cursor: pointer; }
+  .netbox-doc-tree-item > details > summary::-webkit-details-marker { display: none; }
+  .netbox-doc-tree-item > details > summary::before { content: "\f0142"; font-family: "Material Design Icons"; margin-right: .35rem; display: inline-block; transition: transform .15s ease; }
+  .netbox-doc-tree-item > details[open] > summary::before { transform: rotate(90deg); }
+  .netbox-doc-tree-summary { display: flex; align-items: center; gap: .5rem; padding: .25rem .25rem; border-radius: .25rem; }
+  .netbox-doc-tree-summary:hover { background-color: var(--tblr-bg-surface-secondary, rgba(0,0,0,.03)); }
+  .netbox-doc-tree-leaf { margin-left: 1.35rem; }
+  .netbox-doc-tree-empty { margin-left: 1.35rem; font-size: .875rem; }
+</style>
+
+<script>
+document.addEventListener('DOMContentLoaded', function () {
+  var input = document.getElementById('doc-tree-search');
+  if (!input) return;
+  input.addEventListener('input', function () {
+    var term = input.value.trim().toLowerCase();
+    document.querySelectorAll('.netbox-doc-tree-item').forEach(function (li) {
+      var match = !term || li.dataset.name.indexOf(term) !== -1;
+      li.classList.toggle('d-none', !match);
+      if (match) {
+        var parent = li.parentElement.closest('.netbox-doc-tree-item');
+        while (parent) {
+          parent.classList.remove('d-none');
+          var details = parent.querySelector(':scope > details');
+          if (details) details.open = true;
+          parent = parent.parentElement.closest('.netbox-doc-tree-item');
+        }
+      }
+    });
+  });
+});
+</script>
+{% endblock %}
diff --git a/netbox_documentation/templates/netbox_documentation/inc/document_tree_file.html b/netbox_documentation/templates/netbox_documentation/inc/document_tree_file.html
new file mode 100644
index 0000000..04f9f6a
--- /dev/null
+++ b/netbox_documentation/templates/netbox_documentation/inc/document_tree_file.html
@@ -0,0 +1,8 @@
+<li class="netbox-doc-tree-item netbox-doc-tree-file" data-name="{{ document.title|lower }}">
+  <div class="netbox-doc-tree-summary netbox-doc-tree-leaf">
+    <i class="mdi mdi-file-document-outline text-secondary"></i>
+    <a href="{{ document.get_absolute_url }}">{{ document.title }}</a>
+    {% if not document.is_published %}<span class="badge text-bg-warning">Entwurf</span>{% endif %}
+    {% if document.tenant %}<span class="badge text-bg-light"><i class="mdi mdi-domain"></i> {{ document.tenant }}</span>{% endif %}
+  </div>
+</li>
diff --git a/netbox_documentation/templates/netbox_documentation/inc/document_tree_node.html b/netbox_documentation/templates/netbox_documentation/inc/document_tree_node.html
new file mode 100644
index 0000000..776b16d
--- /dev/null
+++ b/netbox_documentation/templates/netbox_documentation/inc/document_tree_node.html
@@ -0,0 +1,20 @@
+<li class="netbox-doc-tree-item" data-name="{{ node.object.name|lower }}">
+  <details open>
+    <summary class="netbox-doc-tree-summary">
+      <i class="mdi mdi-folder text-warning"></i>
+      <a href="{{ node.object.get_absolute_url }}">{{ node.object.name }}</a>
+      {% if node.object.tenant %}<span class="badge text-bg-light"><i class="mdi mdi-domain"></i> {{ node.object.tenant }}</span>{% endif %}
+    </summary>
+    <ul class="netbox-doc-tree list-unstyled">
+      {% for child in node.children %}
+        {% include 'netbox_documentation/inc/document_tree_node.html' with node=child %}
+      {% endfor %}
+      {% for document in node.documents %}
+        {% include 'netbox_documentation/inc/document_tree_file.html' with document=document %}
+      {% endfor %}
+      {% if not node.children and not node.documents %}
+      <li class="netbox-doc-tree-empty text-muted">Leer</li>
+      {% endif %}
+    </ul>
+  </details>
+</li>
diff --git a/netbox_documentation/urls.py b/netbox_documentation/urls.py
index 6033891..9866955 100644
--- a/netbox_documentation/urls.py
+++ b/netbox_documentation/urls.py
@@ -4,7 +4,8 @@ from . import models, views
 
 urlpatterns = (
     path("editor-assets/<path:asset_path>", views.EditorAssetView.as_view(), name="editor_asset"),
-    path("", views.DocumentListView.as_view(), name="document_list"),
+    path("", views.DocumentTreeView.as_view(), name="document_tree"),
+    path("list/", views.DocumentListView.as_view(), name="document_list"),
     path("documents/add/", views.DocumentEditView.as_view(), name="document_add"),
     path("documents/import/", views.DocumentImportView.as_view(), name="document_import"),
     path("documents/import/", views.DocumentImportView.as_view(), name="document_bulk_import"),
diff --git a/netbox_documentation/views.py b/netbox_documentation/views.py
index c7d0855..78bbfde 100644
--- a/netbox_documentation/views.py
+++ b/netbox_documentation/views.py
@@ -52,6 +52,43 @@ class DocumentListView(generic.ObjectListView):
     actions = (AddObject, BulkImport, BulkDelete)
 
 
+class DocumentTreeView(PermissionRequiredMixin, View):
+    """Windows-Explorer/Nextcloud-style folder browser: categories as folders, documents as files."""
+
+    permission_required = "netbox_documentation.view_document"
+    template_name = "netbox_documentation/document_tree.html"
+
+    def get(self, request):
+        categories = list(
+            DocumentCategory.objects.restrict(request.user, "view")
+            .select_related("tenant_group", "tenant")
+            .order_by("name")
+        )
+        documents = list(
+            Document.objects.restrict(request.user, "view")
+            .select_related("category", "tenant_group", "tenant")
+            .order_by("title")
+        )
+
+        nodes = {category.pk: {"object": category, "children": [], "documents": []} for category in categories}
+        roots = []
+        for category in categories:
+            node = nodes[category.pk]
+            parent_node = nodes.get(category.parent_id)
+            (parent_node["children"] if parent_node else roots).append(node)
+
+        uncategorized = []
+        for document in documents:
+            node = nodes.get(document.category_id)
+            (node["documents"] if node else uncategorized).append(document)
+
+        return render(request, self.template_name, {
+            "tree": roots,
+            "uncategorized": uncategorized,
+            "document_count": len(documents),
+        })
+
+
 class DocumentView(generic.ObjectView):
     queryset = Document.objects.select_related("category", "tenant_group", "tenant").prefetch_related("assignments", "attachments")